Global Patent Index - EP 2402620 A1

EP 2402620 A1 20120104 - Clinch bolt

Title (en)

Clinch bolt

Title (de)

Vernieteter Bolzen

Title (fr)

Boulon de rivet

Publication

EP 2402620 A1 20120104 (EN)

Application

EP 11171741 A 20110628

Priority

JP 2010148542 A 20100630

Abstract (en)

A clinch bolt (1) has a screw shaft portion (2) which is inserted into an aperture (11) previously formed in a metal plate (10) and is locked by caulking to the metal plate (10). A plurality of protrusions (4) and depressions (5) are alternately peripherally disposed on a neck shaft portion directly below a head portion (3) disposed at one end of a screw shaft portion (2), and each projection (4) is configured in that an end (4b) at the screw shaft portion (2) side is larger in diameter than an end (4a) at the head portion (3) side. The aperture (11) formed in the metal plate (10) is configured such that the hole diameter thereof is a little larger than the maximum diameter of protrusions (4), and only the metal plate (10) at the periphery of aperture (11) is partially deformed by caulking (plastic deformation) so as to bite into protrusions (4) and depressions (5), thereby providing the clinch bolt (1) with both a resistance to twist-out and a resistance to pull-out.

IPC 8 full level

F16B 35/04 (2006.01); F16B 35/06 (2006.01)

CPC (source: EP US)

F16B 35/048 (2013.01 - EP US); F16B 37/068 (2013.01 - EP US)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2402620 A1 20120104; CN 102312894 A 20120111; JP 2012013121 A 20120119; JP 5189139 B2 20130424; TW 201217660 A 20120501; US 2012003059 A1 20120105

DOCDB simple family (application)

EP 11171741 A 20110628; CN 201110193171 A 20110608; JP 2010148542 A 20100630; TW 100121415 A 20110620; US 201113171874 A 20110629